Subject: [PATCH] mergetools/kdiff3: make kdiff3 work on windows too

From: "Michael Schindler via GitGitGadget" <[email-masked]>
Date: Mon, 07 Jun 2021 20:18:33 +0000

From: Michael Schindler <[email-masked]>

Currently the native kdiff3 mergetool is not found by git mergetool on windows.
The message "The merge tool kdiff3 is not available as 'kdiff3'" is displayed.

But it is important especially for GUI to use this native version on windows.
Kdiff3 for various systems can be downloaded from https://download.kde.org/stable/kdiff3/

Bug cause:
On Windows the executable name has to be translated (kdiff3.exe instead of kdiff) and the windows path has to be searched - similar to winmerge.

Fix:
This change is using mergetool_find_win32_cmd from the library in the translate_merge_tool_path().
This is done the same way as in winmerge.

However this translation must not be made on linux/unix, so a "type kdiff3" test is made on kdiff3 and only if not found the windows search is tried.

Signed-off-by: Michael Schindler [email-masked]
---
    mergetools/kdiff3: make kdiff3 work on windows too
    
    mergetools/kdiff3: make kdiff3 work on windows too
    
    Currently the native kdiff3 mergetool is not found by git mergetool on
    windows. The message "The merge tool kdiff3 is not available as
    'kdiff3'" is displayed.
    
    But it is important especially for GUI to use this native version on
    windows. Kdiff3 for various systems can be downloaded from
    https://download.kde.org/stable/kdiff3/
    
    Bug cause: On Windows the executable name has to be translated
    (kdiff3.exe instead of kdiff) and the windows path has to be searched -
    similar to winmerge.
    
    Fix: This change is using mergetool_find_win32_cmd from the library in
    the translate_merge_tool_path(). This is done the same way as in
    winmerge.
    
    However this translation must not be made on linux/unix, so a "type
    kdiff3" test is made on kdiff3 and only if not found the windows search
    is tried.
    
    Signed-off-by: Michael Schindler [email-masked]

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-952%2Fmichaelcompressconsult%2Fkdiff3_win-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-952/michaelcompressconsult/kdiff3_win-v1
Pull-Request: https://github.com/git/git/pull/952

 mergetools/kdiff3 | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/mergetools/kdiff3 b/mergetools/kdiff3
index 0264ed5b20b2..520cb914a18b 100644
--- a/mergetools/kdiff3
+++ b/mergetools/kdiff3
@@ -25,3 +25,12 @@ merge_cmd () {
 exit_code_trustable () {
 	true
 }
+
+translate_merge_tool_path() {
+	if type kdiff3 >/dev/null 2>/dev/null
+	then
+		echo kdiff3
+	else
+		mergetool_find_win32_cmd "kdiff3.exe" "Kdiff3"
+	fi
+}

base-commit: c09b6306c6ca275ed9d0348a8c8014b2ff723cfb
-- 
gitgitgadget